US5555274A - Phantom data link for digital transmission lines - Google Patents
Phantom data link for digital transmission lines Download PDFInfo
- Publication number
- US5555274A US5555274A US07/844,129 US84412992A US5555274A US 5555274 A US5555274 A US 5555274A US 84412992 A US84412992 A US 84412992A US 5555274 A US5555274 A US 5555274A
- Authority
- US
- United States
- Prior art keywords
- central office
- data
- simplex
- network interface
- interface unit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B3/00—Line transmission systems
- H04B3/02—Details
- H04B3/46—Monitoring; Testing
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B3/00—Line transmission systems
Abstract
Description
Claims (18)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US07/844,129 US5555274A (en) | 1992-03-02 | 1992-03-02 | Phantom data link for digital transmission lines |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US07/844,129 US5555274A (en) | 1992-03-02 | 1992-03-02 | Phantom data link for digital transmission lines |
Publications (1)
Publication Number | Publication Date |
---|---|
US5555274A true US5555274A (en) | 1996-09-10 |
Family
ID=25291896
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US07/844,129 Expired - Lifetime US5555274A (en) | 1992-03-02 | 1992-03-02 | Phantom data link for digital transmission lines |
Country Status (1)
Country | Link |
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US (1) | US5555274A (en) |
Cited By (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5778048A (en) * | 1995-08-18 | 1998-07-07 | Samsung Electronics Co., Ltd. | Feed imbalance detector in repeated line |
US5889785A (en) * | 1992-09-11 | 1999-03-30 | Teltrend Inc. | Remote reporting system for digital transmission line elements |
US6147963A (en) * | 1996-07-11 | 2000-11-14 | 4 Links For Technical Help | Communications system for driving pairs of twisted pair links |
US20020106013A1 (en) * | 2001-02-06 | 2002-08-08 | Norrell Andrew L. | Loop extender with selectable line termination and equalization |
US20020106076A1 (en) * | 2001-02-06 | 2002-08-08 | Norrell Andrew L. | Line powered loop extender with communications, control, and diagnostics |
US6507608B1 (en) * | 2000-02-23 | 2003-01-14 | 2Wire, Inc. | Multi-line ADSL modulation |
US20030035472A1 (en) * | 2001-08-20 | 2003-02-20 | Alcatel | Ghost network built using data transmission via phantom mode |
US6529569B1 (en) | 1999-08-13 | 2003-03-04 | Hubbell Incorporated | Architecture for increasing density of channel bank in digital carrier system |
US7023910B1 (en) | 2000-12-21 | 2006-04-04 | 2Wire, Inc. | Dual-line DSL system and method |
US7813439B2 (en) | 2006-02-06 | 2010-10-12 | Broadcom Corporation | Various methods and apparatuses for impulse noise detection |
US7852950B2 (en) | 2005-02-25 | 2010-12-14 | Broadcom Corporation | Methods and apparatuses for canceling correlated noise in a multi-carrier communication system |
US7953163B2 (en) | 2004-11-30 | 2011-05-31 | Broadcom Corporation | Block linear equalization in a multicarrier communication system |
US8194722B2 (en) | 2004-10-11 | 2012-06-05 | Broadcom Corporation | Various methods and apparatuses for impulse noise mitigation |
US8472533B2 (en) | 2008-10-10 | 2013-06-25 | Broadcom Corporation | Reduced-complexity common-mode noise cancellation system for DSL |
US9374257B2 (en) | 2005-03-18 | 2016-06-21 | Broadcom Corporation | Methods and apparatuses of measuring impulse noise parameters in multi-carrier communication systems |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3760127A (en) * | 1970-11-16 | 1973-09-18 | Italtel Spa | System for the remote supervision of multichannel pcm repeaters |
US4187415A (en) * | 1977-06-20 | 1980-02-05 | Etat Francaise | Remote locating system for transmission faults in data transmission line having regenerative repeaters |
US4354054A (en) * | 1981-04-16 | 1982-10-12 | Bell Telephone Laboratories, Incorporated | Caboose signal controlled reporting arrangement for a regenerator chain |
US4425662A (en) * | 1980-03-18 | 1984-01-10 | Telecommunications Radioelectriques Et Telephoniques T.R.T. | System for tele-locating regenerative repeaters |
US4604745A (en) * | 1983-03-11 | 1986-08-05 | Hitachi, Ltd. | Method of searching fault locations in digital transmission line |
US5038364A (en) * | 1988-11-28 | 1991-08-06 | Fujitsu Limited | Transmission line monitoring system |
US5204880A (en) * | 1991-04-23 | 1993-04-20 | Level One Communications, Inc. | Differential line driver employing predistortion |
-
1992
- 1992-03-02 US US07/844,129 patent/US5555274A/en not_active Expired - Lifetime
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3760127A (en) * | 1970-11-16 | 1973-09-18 | Italtel Spa | System for the remote supervision of multichannel pcm repeaters |
US4187415A (en) * | 1977-06-20 | 1980-02-05 | Etat Francaise | Remote locating system for transmission faults in data transmission line having regenerative repeaters |
US4425662A (en) * | 1980-03-18 | 1984-01-10 | Telecommunications Radioelectriques Et Telephoniques T.R.T. | System for tele-locating regenerative repeaters |
US4354054A (en) * | 1981-04-16 | 1982-10-12 | Bell Telephone Laboratories, Incorporated | Caboose signal controlled reporting arrangement for a regenerator chain |
US4604745A (en) * | 1983-03-11 | 1986-08-05 | Hitachi, Ltd. | Method of searching fault locations in digital transmission line |
US5038364A (en) * | 1988-11-28 | 1991-08-06 | Fujitsu Limited | Transmission line monitoring system |
US5204880A (en) * | 1991-04-23 | 1993-04-20 | Level One Communications, Inc. | Differential line driver employing predistortion |
Cited By (24)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5889785A (en) * | 1992-09-11 | 1999-03-30 | Teltrend Inc. | Remote reporting system for digital transmission line elements |
US6151691A (en) * | 1992-09-11 | 2000-11-21 | Teltrend, Inc. | Remote reporting system for digital transmission line elements |
US6453432B1 (en) * | 1992-09-11 | 2002-09-17 | Westell Technologies, Inc. | Method and system for communicating the status of a digital transmission line element during loopback |
US5778048A (en) * | 1995-08-18 | 1998-07-07 | Samsung Electronics Co., Ltd. | Feed imbalance detector in repeated line |
US6147963A (en) * | 1996-07-11 | 2000-11-14 | 4 Links For Technical Help | Communications system for driving pairs of twisted pair links |
US6529569B1 (en) | 1999-08-13 | 2003-03-04 | Hubbell Incorporated | Architecture for increasing density of channel bank in digital carrier system |
US6507608B1 (en) * | 2000-02-23 | 2003-01-14 | 2Wire, Inc. | Multi-line ADSL modulation |
US7023910B1 (en) | 2000-12-21 | 2006-04-04 | 2Wire, Inc. | Dual-line DSL system and method |
US20020106076A1 (en) * | 2001-02-06 | 2002-08-08 | Norrell Andrew L. | Line powered loop extender with communications, control, and diagnostics |
EP1358731A1 (en) * | 2001-02-06 | 2003-11-05 | 2Wire, Inc. | Line powered loop extender with communications, control, and diagnostics |
EP1358731A4 (en) * | 2001-02-06 | 2005-08-24 | 2Wire Inc | Line powered loop extender with communications, control, and diagnostics |
US20020106013A1 (en) * | 2001-02-06 | 2002-08-08 | Norrell Andrew L. | Loop extender with selectable line termination and equalization |
US7190716B2 (en) | 2001-02-06 | 2007-03-13 | 2Wire, Inc | Line powered loop extender with communications, control, and diagnostics |
US7483528B2 (en) | 2001-02-06 | 2009-01-27 | 2Wire, Inc. | Loop extender with selectable line termination and equalization |
US7447191B2 (en) * | 2001-08-20 | 2008-11-04 | Alcatel | Ghost network built using data transmission via phantom mode |
US20030035472A1 (en) * | 2001-08-20 | 2003-02-20 | Alcatel | Ghost network built using data transmission via phantom mode |
US8194722B2 (en) | 2004-10-11 | 2012-06-05 | Broadcom Corporation | Various methods and apparatuses for impulse noise mitigation |
US7953163B2 (en) | 2004-11-30 | 2011-05-31 | Broadcom Corporation | Block linear equalization in a multicarrier communication system |
US7852950B2 (en) | 2005-02-25 | 2010-12-14 | Broadcom Corporation | Methods and apparatuses for canceling correlated noise in a multi-carrier communication system |
US9374257B2 (en) | 2005-03-18 | 2016-06-21 | Broadcom Corporation | Methods and apparatuses of measuring impulse noise parameters in multi-carrier communication systems |
US7813439B2 (en) | 2006-02-06 | 2010-10-12 | Broadcom Corporation | Various methods and apparatuses for impulse noise detection |
US8605837B2 (en) | 2008-10-10 | 2013-12-10 | Broadcom Corporation | Adaptive frequency-domain reference noise canceller for multicarrier communications systems |
US9160381B2 (en) | 2008-10-10 | 2015-10-13 | Broadcom Corporation | Adaptive frequency-domain reference noise canceller for multicarrier communications systems |
US8472533B2 (en) | 2008-10-10 | 2013-06-25 | Broadcom Corporation | Reduced-complexity common-mode noise cancellation system for DSL |
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AS | Assignment |
Owner name: TELTREND INC. Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:SHEETS, LAURENCE L.;REEL/FRAME:006232/0386 Effective date: 19920713 |
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